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24 Commits

Author SHA1 Message Date
Ruben Groenewoud c2747b0b29 [Rule Tuning] Linux DR Tuning - 4 (#5484) 
* [Rule Tuning] Linux DR Tuning - 4

* Update defense_evasion_file_mod_writable_dir.toml

* Update command_and_control_frequent_egress_netcon_from_sus_executable.toml

* Remove duplicate host.name entry in TOML file

* Fix formatting in defense_evasion_file_mod_writable_dir.toml

* Update command_and_control_frequent_egress_netcon_from_sus_executable.toml

* Add additional fields to base64 decoding activity rule

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Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2026-01-08 10:11:05 +01:00
shashank-elastic 059d7efa25 Prep for Release 9.0 (#4550) 2025-03-20 20:32:07 +05:30
Jonhnathan 0268daa17d [Rule Tuning] Tighten Up Elastic Defend Indexes - Linux (#4446) 2025-02-05 15:25:45 -03:00
Mika Ayenson fe8c81d762 [FR] Generate investigation guides (#4358) 2025-01-22 11:17:38 -06:00
Jonhnathan 282f613ddf [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 1 (#4330) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 1

* min_stack

* Update defense_evasion_doas_configuration_creation_or_rename.toml

---------

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2025-01-08 14:40:43 -03:00
Ruben Groenewoud af9f9e2456 [Rule Tuning] Q2 Linux DR Tuning - Part 1 (#4162) 
* [Rule Tuning] Q2 Linux DR Tuning - Part 1

* Update defense_evasion_binary_copied_to_suspicious_directory.toml
 2024-10-18 15:59:51 +02:00
shashank-elastic 63e91c2f12 Back-porting Version Trimming (#3704) 2024-05-23 00:45:10 +05:30
Mika Ayenson 2c3dbfc039 Revert "Back-porting Version Trimming (#3681)" 
This reverts commit 71d2c59b5c.
 2024-05-22 13:51:46 -05:00
shashank-elastic 71d2c59b5c Back-porting Version Trimming (#3681) 2024-05-23 00:11:50 +05:30
Jonhnathan 458e67918a [Security Content] Small tweaks on the setup guides (#3308) 
* [Security Content] Small tweaks on the setup guides

* Additional Fixes

* Avoid touching deprecated rules
 2024-03-11 09:09:40 -03:00
shashank-elastic 24d5528ab0 Linux Rule Tuning (#3379) 2024-01-11 18:07:03 +05:30
Ruben Groenewoud b533642272 [Rule Tuning] Linux DR Tuning - Part 1 (#3316) 
* [Rule Tuning] Linux DR Tuning - Part 1

* fix

* Update command_and_control_linux_kworker_netcon.toml

* Update defense_evasion_binary_copied_to_suspicious_directory.toml

* Update defense_evasion_file_mod_writable_dir.toml
 2024-01-08 09:50:15 +01:00
shashank-elastic d52546eee5 Enhance Setup Guide information (#3256) 2023-11-03 19:05:29 +05:30
shashank-elastic 7254c582c5 Move Setup information into setup filed (#3206) 2023-10-23 19:28:18 +05:30
shashank-elastic 15718ea09e Improve exsisting setup configurations for Linux (#3141) 2023-10-13 13:39:03 +05:30
Jonhnathan 4233fef238 [Security Content] Include "Data Source: Elastic Defend" tag (#3002) 
* win folder

* Other folders

* Update test_all_rules.py

* .

* updated missing elastic defend tags

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Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
 2023-09-05 14:22:01 -04:00
Ruben Groenewoud a1716bd673 [Rule Tuning] Several rule tunings (#3024) 
* [Rule Tuning] Several rule tunings

* Added 1 more

* optimized ransomware encryption rules

* Update rules/linux/impact_potential_linux_ransomware_file_encryption.toml

* Update rules/linux/impact_potential_linux_ransomware_note_detected.toml

* Added 2 more tunings based on todays telemetry

* Some tunings

* Tuning

* Tuning

* fixed user.id comparison

* Something went wrong with deprecation

* Something went wrong with deprecation

* Update rules/linux/impact_potential_linux_ransomware_file_encryption.toml

* Update rules/linux/discovery_linux_nping_activity.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

* Update rules/linux/discovery_linux_hping_activity.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

* Dedeprecated the rule to deprecate later

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2023-08-25 14:03:29 +02:00
Jonhnathan b4c84e8a40 [Security Content] Tags Reform (#2725) 
* Update Tags

* Bump updated date separately to be easy to revert if needed

* Update resource_development_ml_linux_anomalous_compiler_activity.toml

* Apply changes from the discussion

* Update persistence_init_d_file_creation.toml

* Update defense_evasion_timestomp_sysmon.toml

* Update defense_evasion_application_removed_from_blocklist_in_google_workspace.toml

* Update missing Tactic tags

* Update unit tests to match new tags

* Add missing IG tags

* Delete okta_threat_detected_by_okta_threatinsight.toml

* Update command_and_control_google_drive_malicious_file_download.toml

* Update persistence_rc_script_creation.toml

* Mass bump

* Update persistence_shell_activity_by_web_server.toml

* .

---------

Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2023-06-22 18:38:56 -03:00
shashank-elastic 855ba16299 Linux Rule Tuning (#2753) 2023-05-02 19:12:13 +05:30
Justin Ibarra 59da2da474 [Rule Tuning] Ensure host information is in endpoint rule queries (#2593) 
* add unit tests to ensure host type and platform are included
* add host.os.name 'linux' to all linux rules
* add host.os.name macos to mac rules
* add host.os.name to windows rules; fix linux dates
* update from host.os.name to host.os.type

Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2023-03-05 11:41:19 -07:00
Jonhnathan 77c8665f11 [Rule Tuning] Add endgame support for Linux Rules (#2436) 
* [Rule Tuning] Add endgame support for Linux Rules

* [Rule Tuning] Add endgame support for Linux Rules

* .

* Update persistence_insmod_kernel_module_load.toml
 2023-01-23 20:53:15 -03:00
Terrance DeJesus 4312d8c958 [FR] Add Endpoint, APM and Windows Integration Tags to Rules and Supportability (#2429) 
* initial commit

* addressing flake errors

* added apm to _get_packagted_integrations logic

* addressed flake errors

* adjusted integration schema and updated rules to be a list

* updated several rules and removed a unit test

* updated rules with logs-* only index patterns

* Update tests/test_all_rules.py

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

* addressed flake errors

* integration is none is windows, endpoint or apm

* adding rules with accepted incoming changes from main

* fixed tag and tactic alignment errors from unit testing

* adjusted unit testing logic for integration tags; added more exclusion rules

* adjusted test_integration logic to be rule resistent and skip if -8.3

* adjusted comments for unit test skip

* fixed merge conflicts from main

* changing test_integration_tag to remove logic for rule version comparisons

* added integration tag to new rule

* adjusted rules updated_date value

* ignore guided onboarding rule in unit tests

* added integration tag to new rule

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2023-01-04 09:30:07 -05:00
Justin Ibarra 46d5e37b76 min_stack all rules to 8.3 (#2259) 
* min_stack all rules to 8.3

* bump date

Co-authored-by: Mika Ayenson <mika.ayenson@elastic.co>
 2022-08-24 10:38:49 -06:00
Colson Wilhoit c222d4528d [New Rule] File made Immutable by Chattr (#2161) 
* [New Rule] File made Immutable by Chattr

* Update rules/linux/defense_evasion_chattr_immutable_file.toml
 2022-07-25 13:11:45 -05:00